Blowers are widely used in cement, textile and steel plants. We
take the blowers in clean room for example.

A clean room is virtually dust and/or bacteria free. Clean rooms
are used in laboratory work and in assembly or repair of precision
equipment. A clean room fan supplies clean air through ventilation
systems. This fan runs a system that filters exterior air,
maintains temperature and humidity at constant levels, and
circulates the interior air through a high-performance air filter
while expelling part of the interior air.

Mixing can quickly restart after fault or momentary power loss.
This keeps perishable foods from spoiling in process.

Power loss Ride-Through

The mixing process in not interrupted during brief power loss (<
5 ms).

Power range of G11 VFD

Voltage: 1140VAC (959VAC – 1311VAC)

Power: 45kw/60HP – 400kw/535HP

Specification of G11 VFD

Item

Specification

Input frequency

50/60Hz

Output frequency

0-400Hz

Overload current

150% rated current 1min., 180% 10 sec.

Control mode

sensor-less vector control, V/F control

Starting torque

150% 0.5Hz

Control precision

±0.2%

Torque precision

±5%

Setting frequency menthod

Plastic Extruder Machines, multi-step speed, simple PLC and PID.

Output frequency resolution

0.01Hz

Frequency setting signal

0~+10V; 2~+10V; 4~20mA, 0~20mA

Protection function

Over voltage, under voltage, over load, relay, overheat speed
stall, grounding, instant power cut compensation( within 2 sec for
operation mode. Continue to operate after the power is available),
Charging protection( not to display when the dc voltage of main
circuit is less than 50v), up to 29 ways.

Enclosure

IP20

Cooling mode

forced air cooling

Vibration

Less than 0.2g for 20hz

Ambient temperature / Humidity

-10 Degrees~+40 Degrees / 20~90%Rh (no condensation)

Tips:

A variable-frequency drive (VFD) is a system for controlling the
rotational speed of an alternating current (AC) electric motor by
controlling the frequency of the electrical power supplied to the
motor. A variable frequency drive is a specific type of
adjustable-speed drive. Variable-frequency drives are also known as
adjustable-frequency drives (AFD), variable-speed drives (VSD), AC
drives, microdrives or inverter drives. Since the voltage is varied
along with frequency, these are sometimes also called VVVF
(variable voltage variable frequency) drives.